5159T-2MP(L)-478

View detailed technical data, stock status, and sourcing information for: 5159T-2MP(L)-478
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-463-0272

Item Name Code

05488

Assigment Date

03/02/1999 (27 years ago)

A headed, cylindrically-shaped item having a solid shank for fitting into corresponding holes, used for aligning or fastening. It may have welding projections. It also may contain holes drilled perpendicular to axial centerline. Excludes:pin, eccentric.

poppet flow control device, right-hand 2nd end thread direction, 0.250 inches 2nd end nominal pipe size accommodated, right-hand 1st end thread direction, 0.250 inches 1st end nominal pipe size accommodated

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Nominal Pipe Size Accommodated: 0.250 inches 1st end
Nominal Pipe Size Accommodated: 0.250 inches 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: -40.0 fahrenheit 1st response
Maximum Operating Temp: 250.0 fahrenheit 2nd response
Connection Style: plain (pipe) 1st end
Connection Style: plain,optional end(pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal pipe 2nd end
Maximum Operating Pressure: 2500.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches 1st end
Nominal Thread Size: 0.250 inches 2nd end
Opening Pressure Setting: 478.0 pounds per square inch
Part Name Assigned By Controlling Agency: 5100 series relief valve
Special Features: lockwire special characteristic (l)
Material: rubber butadiene-acrylonitrile class nbr seat
Material: steel comp 303 body
Media For Which Designed: acetylene 2nd response
Media For Which Designed: air 1st response
Media For Which Designed: ammonia, gaseous 3rd response
Media For Which Designed: hydrogen 5th response
Media For Which Designed: refrigerant 12 4th response
Style Designator: straight thru note: to be used for valve bodies of one section only.
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 1st end

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
5159T-2MP(L)-478	Safety Relief Valve

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-01-463-0272?

The FSCG of the NSN 4820-01-463-0272 is 4820

Does the NSN 4820-01-463-0272 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-463-0272 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4820-01-463-0272 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-463-0272 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4820-01-463-0272 was assigned to the Federal Catalog?

It was assigned 27 years ago, on Tue, Mar 2, 1999